| Value | Category | Cases | |
|---|---|---|---|
| 1 | Weekly | 3043 |
13%
|
| 2 | Monthly | 5387 |
23.1%
|
| 3 | Yearly | 8015 |
34.3%
|
| 4 | Not all | 6889 |
29.5%
|
| Sysmiss | 1073 |